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JOURNAL ARTICLE
Nataliya Malakhova, Polina Mozharovskaia, Alexander Berhane Kifle, Alisa Kozitsina
For the first time, bismuth modified electrodes have been used for the voltammetric detection of formaldehyde (FM). The well-known method of forming formaldehyde hydrazone (FAH) in the presence of hydrazine sulphate was used to convert the hydrated form of FM into its electrochemically active derivative. Various experimental conditions for differential pulse voltammetry were studied to achieve the best analytical performance. The FAH reduction current (FM response) reaches its maximum value at a pH of a phosphate buffer solution of 5...
August 22, 2022: Analytical Methods: Advancing Methods and Applications
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RANDOMIZED CONTROLLED TRIAL
C Ell, W Fischbach, R Keller, M Dehe, G Mayer, B Schneider, U Albrecht, W Schuette
BACKGROUND AND STUDY AIMS: There are conflicting data regarding the optimal bowel preparation for colonoscopy. This study was carried out to compare the efficacy, safety, and tolerability of three widely used bowel lavage solutions: the standard polyethylene glycol-electrolyte solution based on the GoLytely formulation (PEG-EL1; Klean-Prep); a sulphate-free PEG-EL solution based on the NuLytely formulation (PEG-EL2, Endofalk); and a sodium phosphate preparation (NaP, Fleet Phospho-Soda)...
April 2003: Endoscopy
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